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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A338271 a(n) is the number of compositions of n, b_1 + ... + b_t = n such that sqrt(b_1 + sqrt(b_2 + ... + sqrt(b_t)...)) is an integer.

Table of values

n a(n)
1 1
2 0
3 0
4 2
5 0
6 2
7 0
8 2
9 2
10 4
11 2
12 6
13 2
14 8
15 4
16 14
17 6
18 20
19 8
20 28
21 14
22 44
23 20
24 66
25 30
26 96
27 46
28 146
29 70
30 220
31 102
32 326
33 154
34 490
35 232
36 740
37 346
38 1102
39 520
40 1652
41 782
42 2484
43 1166
44 3716
45 1750
46 5568
47 2628
48 8358
49 3936
50 12518
51 5900
52 18760
53 8848
54 28138
55 13256
56 42170

List of values

[1, 0, 0, 2, 0, 2, 0, 2, 2, 4, 2, 6, 2, 8, 4, 14, 6, 20, 8, 28, 14, 44, 20, 66, 30, 96, 46, 146, 70, 220, 102, 326, 154, 490, 232, 740, 346, 1102, 520, 1652, 782, 2484, 1166, 3716, 1750, 5568, 2628, 8358, 3936, 12518, 5900, 18760, 8848, 28138, 13256, 42170]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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